Disables optimizations that affect floating-point accuracy. This is a deprecated option.
Windows: Floating Point > Floating-Point Accuracy
Linux: None
Mac OS X: None
IA-64 architecture
Linux: | -IPF-fltacc -no-IPF-fltacc |
Mac OS X: | None |
Windows: | /QIPF-fltacc /QIPF-fltacc- |
None
-no-IPF-fltacc |
Optimizations are enabled that affect floating-point accuracy. |
This option disables optimizations that affect floating-point accuracy.
If the default setting is used, the compiler may apply optimizations that reduce floating-point accuracy.
You can use this option to improve floating-point accuracy, but at the cost of disabling some optimizations.
The recommended method to control the semantics of floating-point calculations is to use option -fp-model (Linux) or /fp (Windows).
Instead of using -IPF-fltacc (Linux) or /QIPF-fltacc (Windows), you can use -fp-model precise (Linux) or /fp:precise (Windows).
Instead of using -no-IPF-fltacc (Linux) or /QIPF-fltacc- (Windows), you can use -fp-model fast (Linux) or /fp:fast (Windows).
None